000 B000000 10/31/2005
000 C000000 0000880161
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 6.1
000 J000000 B
001 A000000 MORGAN STANLEY INSURED MUNICIPAL TRUST
001 B000000 811-06434
001 C000000 2127625260
002 A000000 1221 AVENUE OF THE AMERICAS
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10020
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 N
007 B000000 0
008 A000001 MORGAN STANLEY INVESTMENT ADVISORS INC.
008 B000001 A
008 C000001 801-42061
008 D010001 NEW YORK
008 D020001 NY
008 D030001 10020
010 A000001 MORGAN STANLEY SERVICES COMPANY, INC.
010 C010001 JERSEY CITY
010 C020001 NJ
010 C030001 17311
012 A000001 MORGAN STANLEY TRUST
012 B000001 84-5710
012 C010001 JERSEY CITY
012 C020001 NJ
012 C030001 07311
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 NEW YORK
013 B020001 NY
013 B030001 10281
014 A000001 ARAB MALAYSIA SECURITIES
014 B000001 8-00000
014 A000002 CHINA INTERNATIONAL CAPITAL CORPORATION LTD
014 B000002 8-00000
014 A000003 HC SECURITIES
014 B000003 8-00000
014 A000004 JM MS FIXED INCOME SECURITIES PRIVATE LIMITED
014 B000004 8-00000
014 A000005 JM MORGAN STANLEY PRIVATE LIMITED
014 B000005 8-00000
014 A000006 JM MORGAN STANLEY SECURITIES PRIVATE LIMITED
014 B000006 8-00000
014 A000007 JM MS RETAIL SERVICES PRIVATE LIMITED
014 B000007 8-00000
014 A000008 MORGAN STANLEY & CO. INCORPORATED
014 B000008 8-15869
014 A000009 MORGAN STANLEY & CO. LIMITED
014 B000009 8-00000
014 A000010 MORGAN STANLEY ASIA LIMITED
014 B000010 8-00000
014 A000011 MORGAN STANLEY CANADA LIMITED
014 B000011 8-00000
014 A000012 MORGAN STANLEY QUILTER LIMITED
014 B000012 8-00000
014 A000013 MS DEAN WITTER AUSTRALIA SECURITIES LIMITED
014 B000013 8-00000
014 A000014 MORGAN STANLEY JAPAN LIMITED
014 B000014 8-00000
014 A000015 VAN KAMPEN FUNDS
014 B000015 8-19412
014 A000016 MORGAN STANLEY, S.V., S.A.
014 B000016 8-00000
014 A000017 MORGAN STANLEY DW INC.
014 B000017 8-14172
014 A000018 MORGAN STANLEY INTERNATIONAL LIMITED
014 B000018 8-00000
014 A000019 MORGAN STANLEY SECURITIES LIMITED
014 B000019 8-00000
014 A000020 MORGAN STANLEY BANK AG
014 B000020 8-00000
014 A000021 MORGAN STANLEY DISTRIBUTION INC.
014 B000021 8-44766
014 A000022 MORGAN STANLEY DISTRIBUTORS INC.
014 B000022 8-45262
014 A000023 MORGAN STANLEY MARKET PRODUCTS INC.
014 B000023 8-37795
014 A000024 MS SECURITIES SERVICES INC.
014 B000024 8-26804
014 A000025 PRIME DEALER SERVICES CORP.
014 B000025 8-47025
015 A000001 THE BANK OF NEW YORK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
018  000000 Y
019 A000000 Y
019 B000000  107
019 C000000 MORGANSTAN
020 A000001 GOLDMAN,SACHS & CO.
020 B000001 13-5108880
020 C000001     14
020 C000002      0
020 C000003      0
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
020 C000008      0
020 C000009      0
020 C000010      0
021  000000       14
022 A000001 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
022 B000001 13-5674085
022 C000001     45406
022 D000001     41396
022 A000002 JP MORGAN CHASE & CO.
022 B000002 13-3224016
022 C000002     27895
022 D000002     29449
022 A000003 UBS FINANCIAL SERVICES INC.
022 B000003 13-3873456
022 C000003     13962
022 D000003      9511
022 A000004 EDWARDS (A.G.) & SONS, INC.
022 B000004 43-0895447
022 C000004      3600
022 D000004      8928
022 A000005 BEAR, STERNS & CO. INC.
022 B000005 11-2418191
022 C000005      6275
022 D000005      5564
022 A000006 CITIGROUP GLOBAL MARKETS, INC.
022 B000006 11-2418191
022 C000006      5919
022 D000006      5512
022 A000007 DAIN RAUSCHER INC.
022 B000007 41-1416330
022 C000007      2147
022 D000007      7762
022 A000008 ADVEST, INC.
022 B000008 06-0950348
022 C000008         0
022 D000008      9821
022 A000009 LEGG MASON WOOD WALKER, INC.
022 B000009 52-0902557
022 C000009      4470
022 D000009      1052
022 A000010 FIDELITY CAPITAL MARKETS
022 B000010 04-2653569
022 C000010         0
022 D000010      5460
023 C000000     132316
023 D000000     135056
024  000000 N
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 Y
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 N
045  000000 Y
046  000000 N
047  000000 Y
048  000000  0.270
048 A010000        0
048 A020000 0.000
048 B010000        0
048 B020000 0.000
048 C010000        0
048 C020000 0.000
048 D010000        0
048 D020000 0.000
048 E010000        0
048 E020000 0.000
048 F010000        0
048 F020000 0.000
048 G010000        0
048 G020000 0.000
048 H010000        0
048 H020000 0.000
048 I010000        0
048 I020000 0.000
048 J010000        0
048 J020000 0.000
048 K010000        0
048 K020000 0.000
049  000000 N
050  000000 N
051  000000 N
052  000000 N
053 A000000 N
054 A000000 Y
054 B000000 Y
054 C000000 Y
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 Y
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 Y
054 M000000 Y
054 N000000 N
054 O000000 Y
055 A000000 N
055 B000000 N
056  000000 Y
057  000000 N
058 A000000 N
059  000000 Y
060 A000000 Y
060 B000000 Y
061  000000        0
062 A000000 Y
062 B000000   0.0
062 C000000   0.0
062 D000000   0.0
062 E000000   6.6
062 F000000   0.0
062 G000000   0.0
062 H000000   0.0
062 I000000   0.0
062 J000000   0.0
062 K000000   0.0
062 L000000   0.0
062 M000000   0.0
062 N000000   0.0
062 O000000 137.7
062 P000000   0.0
062 Q000000   0.0
062 R000000   0.0
063 A000000   0
063 B000000 18.2
064 A000000 Y
064 B000000 N
066 A000000 N
067  000000 N
068 A000000 N
068 B000000 N
069  000000 N
070 A010000 Y
070 A020000 N
070 B010000 N
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 Y
070 E020000 Y
070 F010000 N
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 N
070 L010000 N
070 L020000 N
070 M010000 N
070 M020000 N
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000     59416
071 B000000     67557
071 C000000    412453
071 D000000   14
072 A000000 12
072 B000000    20564
072 C000000        0
072 D000000        0
072 E000000        0
072 F000000     1145
072 G000000      339
072 H000000        0
072 I000000       89
072 J000000       19
072 K000000        0
072 L000000       70
072 M000000       12
072 N000000       17
072 O000000        0
072 P000000        0
072 Q000000        0
072 R000000       43
072 S000000       32
072 T000000        0
072 U000000        0
072 V000000        0
072 W000000      532
072 X000000     2298
072 Y000000        0
072 Z000000    18266
072AA000000     4638
072BB000000     1071
072CC010000        0
072CC020000    10205
072DD010000    17887
072DD020000        0
072EE000000        0
073 A010000   0.8100
073 A020000   0.0000
073 B000000   0.0000
073 C000000   0.0000
074 A000000       18
074 B000000        0
074 C000000    18738
074 D000000   388994
074 E000000        0
074 F000000        0
074 G000000        0
074 H000000        0
074 I000000        0
074 J000000        0
074 K000000        0
074 L000000     6161
074 M000000       60
074 N000000   413971
074 O000000     1030
074 P000000      136
074 Q000000        0
074 R010000        0
074 R020000        0
074 R030000        0
074 R040000      283
074 S000000   130051
074 T000000   282471
074 U010000   282471
074 U020000        0
074 V010000    15.23
074 V020000     0.00
074 W000000   0.0000
074 X000000     2585
074 Y000000      325
075 A000000        0
075 B000000   292916
076  000000    13.60
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 Y
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078  000000 N
080 A000000 ICI MUTUAL INSURANCE COMPANY
080 B000000 GULF, ZURICH, FIDELITY AND DEPOSIT AT AL.
080 C000000   150000
081 A000000 Y
081 B000000 106
082 A000000 N
082 B000000        0
083 A000000 N
083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
085 B000000 N
086 A010000      0
086 A020000      0
086 B010000    841
086 B020000  11600
086 C010000      0
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
087 A010000 SHARES OF BENEFICIAL INTEREST
087 A020000 61745P866
087 A030000 IMT
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 Y
SIGNATURE    Sonya Martirosyan
TITLE